baber/WOPTO huggingface dataset:
Patent GB-1163312-A (GB)
Title: Pressure Fluid Cylinders
Inventor: PURDUE DAVID RALPH
IPC: F15B15/22
Filed: 1966-08-27
Abstract: 1,163,312. Fluid-pressure apparatus. WELLMAN CONTROLS Ltd. Aug. 4, 1967 [Aug. 27, 1966], No.38518/66. Heading F1P. A piston 11 slidable in a cylinder 10 is selectively arranged to be cushioned near the end of its stroke towards a cylinder end block 12 or allowed to complete its stroke un-cushioned. As shown, the piston is arranged to be cushioned, since fluid, e.g. air, which is exhausted by the piston through a chamber 13 and port 24, has to pass through a bore 20 having an adjustable bleed valve, when a plug 15 on the piston enters the chamber 13. To change to un-cushioned operation, the plug 29 of a spring-loaded ball valve 27 is removed from a port 25 and fitted to the port 24 so that fluid is exhausted unrestricted through a bore 23 and the port 25. To return the piston fluid is supplied through the port 24 or 25 which is not blocked by the plug 29.
Patent GB-875569-A (GB)
Title: Improvements in or relating to the production of metal ingots and castings
Inventor: HALL CLIFFORD
IPC: B22C23/02
Filed: 1958-11-28
Abstract: 875,569. Casting-processes; mould materials. FOUNDRY SERVICES INTERNATIONAL Ltd. Sept. 22, 1959 [Nov. 28, 1958], No. 38546/58. Class 83 (1). A thin metal-impervious layer faces the exothermic composition which constitutes, or lines, a mould. The metal-impervious layer may be mica, graphite, cement, hardboard, cardboard, paper, glass, fibreglass, metal, silica flour. Specifications 627,678, 769,719, 774,490, 774,491, 835,483 and 875,568 also are referred to.
Patent GB-1284606-A (GB)
Title: Improvements in and relating to articles made from electromagnetic radiation-sensitive elements
IPC: G03F7/004
Filed: 1969-08-01
Abstract: 1284606 Photographic processes W C BLATCHFORD (Teeg Research Inc) 1 Aug 1969 38715/69 Heading G2C Images are produced by imagewise exposing a material comprising a support and a layer of inorganic material which is unreactive with the support, or, if a reactive support is used an interlayer unreactive with the inorganic material is applied; the inorganic material being a binary compound of O, S, Se or Te with a more electropositive element such as the sulphides of Sb, As, Ag, Bi or Cr or arsenic silicide, As/S or Se/S or a As/S/halogen mixture or a As/S/antimony oxide mixture and treating the exposed material with either (i) a solvent which differentially dissolved the exposed or unexposed areas or (ii) a hydrophilic or oleophilic material which selectively adheres to the hydrophilic or oleophilic areas. Lead iodide may be used as the imagewise material if development is by hydrophilic or oleophilic materials. Arsenic tri- and penta-sulphides are preferred inorganic materials and may be developed by dilute aqueous solutions of ammonium hydroxide, sodium sulphide or potassium carbonate to remove the exposed areas or by lithium carbonate solution to remove the unexposed areas. A saturated sodium triphosplate/sodium carboxate solution removes the exposed areas whereas. dilution ten times will remove the unexposed areas at room temperature but the exposed areas at 40‹ C. Masks may be produced if the support is transparent e.g. glass.
Patent GB-964105-A (GB)
Title: Improvements in or relating to getters
IPC: H01J17/24
Filed: 1960-11-14
Abstract: 964,105. Discharge apparatus. PHILIPS ELECTRICAL INDUSTRIES Ltd. Nov. 14, 1960 [Nov. 17, 1959], No. 39018/60. Heading H1D. A method of manufacturing a non-evaporating getter, e.g. for an electric discharge tube, comprises mixing a gettering metal in hydride form consisting of the hydride of one or more of the metals zirconium, hafnium or titanium, or their alloys, of a grain size smaller than 5Á, with tungsten powder of a considerably smaller grain size, in a weight ratio of approximately 2 : 3, compressing the mixture into blocks, granulating the blocks and subsequently compressing to form tablets or pills of a desired weight, or in a container of a desired shape, those grains produced having a diameter of from approximately 0.1 to 0.5 mms. Finely-divided nickel powder may be added to the mixture in a proportion of 5-15% by weight. In a specific example zirconium hydride of grain size 2Á, tungsten powder of grain size 1Á and nickel powder of grain size 4Á are mixed and compressed into cylinders. The cylinders are subsequently ground and the fraction 0.125 to 0.5 mms. transported to a tableting machine which compresses tablets into a nickel-plated iron tape. The getter is activated at 700-900 C. in a discharge tube, hydrogen which is evolved being pumped off. Gases gettered include hydrogen, carbon monoxide, nitrogen and oxygen.
Patent GB-1365778-A (GB)
Title: Brake provided with a self adjusting device
IPC: F16D65/56
Filed: 1972-08-22
Abstract: 1365778 Hydraulic-mechanical spot-type disc brake actuators: wear-adjusting ALFRED TEVES GmbH 22 Aug 1972 [31 Aug 971] 39086/72 Headings F2E and F2F In the hydraulic-mechanical actuator, for a spot-type disc brake, shown, an hydraulicallyoperated brake piston 12 has a groove 28 for engagement with the brake lining to prevent rotation, and is sealed by a roll-back seal 15 providing a piston return means; an adjusting spindle 14 is fixed to the piston 12 and engages, by a steep thread 16, an adjusting nut 13, which nut is urged by a helical pressure spring 18 via ball bearings 23 and 19 against the cylindrical bottom 20; the spring 18 abuts at its other end against a housing member 22 connected at 22a to cylinder 11, the housing member also serving to limit the rearward travel of the brake piston 12; a hand brake piston 24 is normally located by an eccentric 26 and push-rod 25 so that a conical friction surface on it is spaced by a handbrake-clearance distance s from a corresponding friction surface in a recess in the adjusting nut 13. The thread 16 is so steep that hydraulic pressure is sufficient, when appropriate, (see below), to cause relative rotation, and also the brake piston may be pushed back into the cylinder by hand. During normal hydraulic operation, piston 12 is advanced and retracted a distance equal to the normal clearance between disc and lining. This clearance may be provided by play between the threads on nut and spindle, though nut 13 may move forward slightly and back again. After excessive wear of the brake lining, piston movement causes withdrawal of spindle 14 from, and consequent rotation of, nut 13. When the hand brake is actuated, hand brake piston 24 is first forced into contact with nut 13, such contact providing a torsionally-strong connection. Hand brake piston 24 is prevented from rotating by the shape of push-rod 25, so nut 13 is also prevented from rotating. The mechanical connection: eccentric, push-rod, piston 24, nut 13, spindle 14 and piston 12 is now complete, and further rotation of the eccentric applies the brake via piston 12, against the force of spring 18.
Patent GB-1071108-A (GB)
Title: Improvements in and relating to turbines and compressors
IPC: F01D17/16
Filed: 1964-09-25
Abstract: 1,071,108. Axial-flow compressors; turbines. BROWN BOVERI & CIE A. G. Sept. 25, 1964 [Sept. 27 1963], No. 39155/64. Headings F1C and F1T In a turbine or compressor having adjustable stator blades 26, Fig. 1, an adjusting cylinder 15 carries grooved rings 19, 20, 21 receiving slide blocks 23 on blade adjusting levers 24. The cylinder and grooved rings are each formed in two halves separated in the horizontal plane to permit individual assembly of the slide blocks in the grooves. Axial adjustment of the cylinder by rack 10 and pinion 8 adjusts the angularity of the stator blades 26. The grooved rings are each connected within the cylinder by bolts and a pin extending radially through the cylinder wall, or each grooved ring is received in a peripheral groove in the inner surface of the cylinder and secured by radially-directed bolts. In the embodiment in Fig. 2 (not shown), the adjusting cylinder (40) has welded thereto a number of grooved rings (41) each provided with a detachable side plate (42).
Patent GB-1447662-A (GB)
Title: Electrostatic printing process
Inventor: PRESSMAN GERALD L
IPC: B41J2/415
Filed: 1973-08-20
Abstract: 1447662 Selective printing ELECTROPRINT Inc 20 Aug 1973 [18 Aug 1972] 39343/73 Heading B6F The disclosure is the same as that of Specification 1,331,993 (Electroprint), but the claims are directed to electrostatic printing processes.
Patent GB-831430-A (GB)
Title: Filter unit and filters equipped therewith
IPC: B01D25/00
Filed: 1956-12-28
Abstract: 831,430. Filters. JAUME, R. Dec. 28, 1956 [Jan. 5, 1956], No. 39476/56. Class 46. [Also in Group V] A filter element consists of a filter "cloth" of natural or synthetic fibres or wire gauze spanning a hollow trough-shaped carrier made of metal, alloy or a plastic material. The element of Fig. 1 may be made by positioning a filter cloth 4, preferably of polyamide fibres, in a mould and then injecting into the mould a plastic material, preferably a polyamide resin, in a fluid condition, which on setting forms the trough-shaped carrier 1, 2, 3, united to the edges of the cloth 4. Slots 5, bordered by integrally-moulded lips 6, are provided in the lower side 3, and after closing the ends and coiling in the manner shown the element may be arranged in a casing 9, 10, 11, Fig. 4, having inlet apertures 12 in its spirally-grooved bottom wall 10, and recesses in the cover 9 for accommodating integrally-moulded studs 8 on the element. Instead of being coiled the element may have its ends joined together and be corrugated into star shape ; or it may be replaced by a plurality of concentric cylindrical elements. The side 2 may be apertured at 14, Fig. 8, and another element arranged above it. to provide parallel-flow filtration. Alternatively, the side 2 may be continued outward, downward and inward to meet the side 3 and thus to form a further wall 15, Fig. 10, the side 2 being in that case formed with apertures 16. Stacked elements C, D then provide series-flow filtration. The element may alternatively be formed by making two right-angled longitudinal folds in a planar assembly comprising a filter cloth moulded along one edge into a wide plastic strip (having a sealing lip formed along its free edge), and along the other edge into a narrow strip, (likewise having a sealing lip along its free edge). The finished element has the cross-section of Fig. 3. Where the element does not form a closed figure its ends are obturated either by an end wall moulded for the purpose, or by softening the ends of the carrier 1, 2, 3 by heating, and applying clamping pressure to embed the cloth therein. The carrier may be formed by alternative moulding or casting techniques (see Group V).
Patent GB-1416925-A (GB)
Title: Magnetic-field-sensing apparatus
IPC: G01P3/487
Filed: 1973-08-21
Abstract: 1416925 Magnetic position indicators SIEMENS A G 21 Aug 1973 [21 Aug 1972] 39668/73 Addition to 1329627 Heading G1N An apparatus for use in a potentiometer or electronic position indicating apparatus of the type which includes two magnetic field sensing parts as described in Specification 1329627 includes a rotatable magnet flux generator arranged symmetrically with respect to the two parts so that as it rotates an output signal is provided which varies with the relative rotation of the flux generator and sensing parts. Each sensing part includes permanent magnets 4, 6, pole pieces 8, 12 and 10, 14 and magnetic resistive members 20, 22 forming symmetrical biasing flux paths 30, 32, gap 38 being filled with diamagnetic material. Permanent magnet disc 24 magnetized diametrically along an axis mutually perpendicular to the magnetization axis of magnets 4, 6 is mounted on shaft 26 which may be the output shaft of a planetary reduction gear. The two magneto-resistive members 20, 22 are connected in adjacent arms of a constant D.C. energized resistance bridge, Fig. 2 (not shown). In the position of the disc 24 shown the magnetic flux 36 of the disc adds to that passing through member 20 and subtracts from that passing through 22 causing an output from the bridge. As the disc rotates the overall flux in 20 reduces and that in 22 increases until no flux 36 passes through members 20, 22. Further rotation causes the overall flux in one member to increase and in the other to decrease whereby a sinusoidal output voltage is obtained from the bridge circuit.
Patent GB-1358502-A (GB)
Title: Balloon control ring
IPC: B65H57/22
Filed: 1972-08-25
Abstract: 1358502 Yarn balloon guide H KANAI 25 Aug 1972 [2 Sept 1971 7 Oct 1971 16 May 1972] 39690/72 Heading DID  A balloon control ring is provided with generally parallel slanting ribs on its inner surface so that a yarn rotating around the ring engages each rib as or before it leaves the preceding rib. The ring can be made of stranded metal or plastics wire, or formed with a stranded wire-like inner shaped surface, raised straight ribs, ribs formed of rows of hemispheres, or ribs formed of corrugations.
Patent GB-1072987-A (GB)
Title: A device for cutting plastic film material
IPC: B26D1/04
Filed: 1964-09-30
Abstract: 1,072,987. Seaming non-metallic sheet material. B. MANINI, and F. TUCCI. Sept. 30, 1964 [Oct. 1, 1963], No. 39718/64. Heading B5K. Apparatus for cutting and welding thermoplastic material in the form of a flattened tubular web P comprises a plurality of resiliently loaded rollers 33, a blade 32 having a serrated edge 32a, welding jaws 28, 29, sheet-retaining elements 30, 31 operable to grip the web P, means 42 operable to move the rollers 33 to press the web P into contact with the edge 32a and, additionally, due to their resilient loading, to be rolled along the edge 32a to effect cutting of the web. The welding and cutting members are mounted on a carriage C which runs on rollers 6 along guideways 7, Fig. 2, mounted on a frame 3. The web P is unwound from a roll 4, passes through a working zone L and is rewound on a roll 5. The carriage C is reciprocated through the zone L by two chains 8, one at each side thereof, driven by a motor 8a with a speed equal to that of the web P. The upper and lower runs of each chain 8 are engaged by pinions 9, 9a secured to the carriage C, the spindles of the pinions 9, 9a being alternately locked by braking means 10 operable by limit switches (not shown) to reverse the direction of the carriage C. The welding jaw 28 comprises a resistanceheated element mounted on a support 28a secured to a bridge 22 and co-operates with an unheated jaw 29 carried by a support 29a on a cross-beam 24 which is raised to effect welding by a cylinder 25 and which is guided by rollers 26 and shoes 27. Simultaneously, the elements 30, 31 on supports 30a, 31a grip the web P to prevent slippage thereof during cutting and welding. The blade 32 is mounted on the beam 24. Each roller 33 is mounted on a lever 34 pivoted at 35 in a groove 36a in an element 36. The upper ends 34a of the levers 34 are held in engagement with the bottom of the groove 36 by springs 37. The element 36 is held against rollers 38 by rods 40 having springs (40a), Fig. 4 (not shown), acting between shoes (40b) and the upper heads of the rods (40). In use, a cylinder 42 moves the element 36 in the direction of the arrow F 2  so that the rollers 38 co-operate with inclined surfaces 41a to move the rollers 33 downwardly on to the upper surface of the web P to co-operate with the edge 32a to perforate the web.
Patent GB-1376905-A (GB)
Title: Mixing chamber
IPC: B01F5/00
Filed: 1972-07-07
Abstract: 1376905 Mixing powder and liquid MONO PUMPS (ENG) Ltd 7 July 1972 [25 Aug 1971] 39851/71 Heading B1C Apparatus for adding powdered lime to a vortex of sewage sludge comprises a closed chamber 1 having a liquid inlet 8, a powder inlet 5 and an outlet 3 from which the mixture is sucked to induce a vortex in the outlet. The inlet 8 may as shown, be downwardly inclined and may intersect the chamber axis, or be tangential (see Figs. 3 and 4, not shown). There may be a removable window 10 also providing access to the chamber, and a point 9 for a water spray nozzle, a probe, or a vacuum gauge. The outlet 3 may be connected to an eccentric rotor pump to provide the suction.
Patent GB-1508576-A (GB)
Title: Dispersion of solids in organic solvents
IPC: C09K23/52
Filed: 1974-09-17
Abstract: 1508576 Pigment dispersions IMPERIAL CHEMICAL INDUSTRIES Ltd 29 Aug 1975 [17 Sept 1974 (2) 1 Aug 1975] 40416/74 40418/74 and 32287/75 Heading C1A [Also in Divisions B1 C3 and C4] A dispersion of (a) a solid in (b) an organic liquid in which the particle size of the solid is below 20 microns, contains dissolved therein (c) a resinous or polymeric dispersing agent suitable for dispersing the solid and additionally contains therein (d) a fluidizing agent, which is different from the dispersing agent, comprising a substituted ammonium salt of a coloured acid wherein there are 19-60 carbon atoms contained in at least 3 chains attached to the N atom of the substituted ammonium ion. The coloured acid is defined as any pigment or dyestuff which contains an acidic grouping. Example 12 discloses a dispersion comprising as (a) TiO 2 , (b) toluene, (c) a polyurethane and (d) the product of reacting copper phthalocyanine sulphonic acid and dioctadecyl dimethyl ammonium chloride. Further examples disclose dispersions comprising as (a) carbon black, (b) toluene or spindle oil, (c) a polyurethane and (d) the product of casting a copper phthalocyanine sulphonide and dioctadecyl dimethyl ammonium chloride (16, 42, 43).
Patent GB-1015473-A (GB)
Title: Method and apparatus for producing moulded articles
IPC: B27N5/00
Filed: 1963-10-14
Abstract: 1,015,473. Moulding granular materials. H. SCHWARZ. Oct. 14, 1963, No. 40429/63. Heading B5A. In a process for the production of moulded articles, dry granular aggregate material, e.g. pellets of cork scrap, is mixed with a liquid binder, e.g. latex, and dried in a mixing drum 1. A measured quantity of this material is deposited in a lower mould half 3a and the mould half conveyed to a press station 4 where an upper mould half 3b is applied thereto to compress the material. The mould halves 3a, 3b have locking devices operated at the press station 4 to retain the mould in a closed position during subsequent operations. The mould is conveyed to heating and cooling stations 5, 6 before being unlocked and opened at a station 7 where the moulded article, e.g. a sole 8, is removed. A plurality of unpacking stations 7 may be provided. At stations 5 heating may be effected by passing steam through conduits in the mould or by electrical means. Pigments or the like may be added during the mixing of the material.
Patent GB-1428512-A (GB)
Title: Apparatus for joining plastics pipe sections
IPC: F16L41/06
Filed: 1973-08-28
Abstract: 1428512 Seaming A H MCELROY 28 Aug 1973 40543/73 Heading B5K [Also in Division F2] The apparatus for welding thermoplastics pipes 22, 30 or 48, either coaxially or at a selected angle including a T-shaped joint, the pipes are held by fixed clamps 12, 18 and a movable clamp 14 which can be traversed along rods 24 by operation of a lever 32. The plastics material is heated to fusion point by a removable heater assembly 16 comprising heater blocks shaped to the pipe ends and held against a cylinder block 60 containing electrical resistance elements by pivotal arms 80, 81. To effect a right angle joint (Fig. 2, not shown) the heater blocks have concave and convex dissipative surfaces. The heater is thermostatically controlled and may be kept in a temperature controlled box when not in use (Figs. 9, 10, not shown).
Patent GB-1514435-A (GB)
Title: System for the digital transmission of colour television signals
IPC: H04N11/04
Filed: 1976-09-30
Abstract: 1514435 Colour television systems ROBERT BOSCH GmbH 30 Sept 1976 [1 Oct 1975] 40603/76 Heading H4F In a colour television system digital colour information relating to alternate fields only is transmitted. At the transmitter the colour signal A is split (B) into luminance Y, and chrominance C components. The chrominance component is demodulated (D) and encoded (E) in differential pulse code form. A half field frequency switch F passes only alternate, e.g. odd, fields of encoded information. Each odd field is transmitted and passes via half line frequency switch L at the receiver to a store H which stores information relating only to alternate, e.g. odd, picture elements. During even field periods a store G at the transmitter, which stores only the even picture elements of the preceding odd field, is read out to a store I at the receiver. The outputs of the stores H and I are combined to provide a complete odd field of encoded information during each field period, the information in the field changing at half field rate. The information is decoded (M) and modulated (N) before being added to the transmitted luminance component Y, which has been delayed by one field period, to provide the complete colour television signal.
Patent GB-1436557-A (GB)
Title: Sole pressure members
IPC: A43D25/10
Filed: 1972-09-01
Abstract: 1436557 Boots etc BRITISH UNITED SHOE MACHINERY Co Ltd 31 Aug 1973 [1 Sept 1972] 40633/72 Heading A3B [Also in Division B5] A pad 2 (Fig. 2) for use in a sole laying press is made by casting polyurethane material in a mould having the shape of the shoe bottom and curing the polyurethane without the application of external heating. The mould (Fig. 5) includes an open moulding frame 14 of epoxy resin having a tapered inner surface 20 and a bottom form in the frame 14 having the shape of the shoe bottom which together define the moulding cavity 18. The form is made by casting a block of polyurethane foam in the frame 14, removing the block from the frame 14 and sawing the block into two halves 16 each having a flat curface 26. A cardboard template 15 having the shape of the shoe bottom is then used to mark the required shape on the flat surface 26 of each block half 16 and each block half is then shaped to correspond to the shoe bottom shape is shown in Figure 4. The block havles 16 follow both the longitudinal and transverse contours of the shoe bottom. The block halves 16 are then bonded together with the template 15 between them and are then placed in the frame 14 to define the mould cavity 18. A sealing material (which may also serve as a mould release agent) is then applied to the surface of the mould cavity 18 and polyurethane foam material is then cast in the mould cavity 18 to form the pad 2.
Patent GB-1010033-A (GB)
Title: Improvements in cutters for use in rotary lawn-mowers
Inventor: BJEREUS SVEN RAGNAR
IPC: A01D34/63
Filed: 1964-10-06
Abstract: 1,010,033. Rotary-scythe mowers. FLYMO S.A. Oct. 6, 1964, No. 40646/64. Heading A1F. In a rotary-scythe mower having a cutter 5 rotatable with a power-driven vertical shaft 3, the cutter comprises arms 13 of resiliently flexible material which, when the mower is in operation, are subjected to spring forces tending to raise their outer end and to centrifugal forces tending to lower these ends so that their vertical position is dependent upon the speed of rotation of the cutter. The mower is of the type described in Specification 929,610 having no ground-wheels and being supported, in operation, upon an air-cushion produced by a fan 4 within the mowerhousing 2. Such mowers are difficult to start, in long grass, unless the outer ends 14 of the cutters are well clear of the ground. This is achieved by providing a blade of the form shown in Fig. 4 wherein the arms extend upwardly from bends 12 adjacent to the central part 11. The cutter-edges 14 are formed by bending downwardly the outermost parts of the arms. Shims 9 may be mounted on the shaft 3 to adjust the ground-clearance, and weights 8 (Fig. 1) may be mounted on the arms to increase the centrifugal forces. In a modification (Fig. 6, not shown) the flexibility of the arms is increased by providing cut-outs in the vicinity of the bends 12.